{"uid":"cap_gNx7B-ryJuZJt0OuEknwY","slug":"gpuops-arbitrum-rpc-endpoint-00e49da0","name":"GPUOps Arbitrum RPC Endpoint","description":"Multi-chain blockchain data API. 7 chains. x402 pay-per-call with USDC on Base.","url":"https://chain.gpuops.io/v1/rpc/arbitrum","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"id":{"type":"integer"},"method":{"type":"string"},"params":{"type":"array"},"jsonrpc":{"type":"string"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_i4uQqToU_5lf1kqK6Q9eq","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Provides pay-per-call JSON-RPC access to the Arbitrum blockchain network via x402 micropayments","exampleAgentPrompt":"Can you check the current ETH balance for wallet address 0xAbC123... on the Arbitrum network using the eth_getBalance RPC method?","exampleUseCases":[{"title":"DeFi portfolio tracker on Arbitrum","prompt":"Look up the current token balances and recent transaction history for my wallet 0xDEAD...BEEF on Arbitrum so I can see how my DeFi positions are doing."},{"title":"Smart contract state read","prompt":"Call the Arbitrum RPC to read the current price from my on-chain Chainlink oracle contract at 0x1234...5678 using eth_call — I need the latest answer."},{"title":"Gas fee estimation for Arbitrum transaction","prompt":"Can you fetch the current gas price and estimate the fee for a token swap transaction on Arbitrum before I submit it?"}],"resultDescription":"Standard Ethereum JSON-RPC response object containing the requested blockchain data — block details, transaction info, account state, log entries, or contract call results — depending on the method called.","failureModes":["Payment failure if insufficient USDC balance for x402 micropayment","Invalid JSON-RPC method name returns error code -32601","Malformed params array causes -32602 invalid params error","Rate limiting or node unavailability returns 503","Non-existent block or transaction hash returns null result"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go Arbitrum RPC access without committing to a subscription, especially useful for agents making sporadic or low-volume blockchain queries. Ideal for multi-chain workflows where cost-per-call transparency via x402 USDC micropayments is preferred over monthly API key billing.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:41:32.805Z","isFirstParty":false}